package com.cj.reggie.controller;


import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.cj.reggie.common.R;
import com.cj.reggie.entity.Employee;
import com.cj.reggie.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;
import javax.servlet.http.HttpServletRequest;

@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {

    @Autowired
    private EmployeeService employeeService;

    /**
     * 员工登录
     * @param request
     * @param employee
     * @return
     */
    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee){
//  1.将页面提交的米吗password进行md5加密
        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());
//  2.根据页面提交的用户username查询数据库
        LambdaQueryWrapper<Employee> lqw = new LambdaQueryWrapper<>();
        lqw.eq(Employee::getUsername,employee.getUsername());
        Employee emp = employeeService.getOne(lqw);
//  3.判断
        // TODO 20
        if (emp == null){
            return R.error("登录失败");
        }
        if (!emp.getPassword().equals(password)){
            return R.error("登录失败");
        }
        if (emp.getStatus()==0){
            return R.error("账户已禁用");
        }
        request.getSession().setAttribute("employee",emp.getId());
        return R.success(emp);
    }

//    员工退出
    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request){
//        清理Session中的员工id
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");
    }

    /**
     * 新增员工
     * @param employee
     * @return
     */
    @PostMapping
    public R<String> save(HttpServletRequest request,@RequestBody Employee employee){
        log.info("新增员工,员工信息{}",employee.toString());
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));

//        employee.setCreateTime(LocalDateTime.now());
//        employee.setUpdateTime(LocalDateTime.now());

//        Long empId= (Long) request.getSession().getAttribute("employee");
//        employee.setCreateUser(empId);
//        employee.setUpdateUser(empId);

        employeeService.save(employee);

        return R.success("添加员工成功");
    }
    /**
     * 员工信息查询分页
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name){
        log.info("page = {},pageSize = {},name = {}",page,pageSize,name);

        // 构造分页构造器
        Page<Employee> pageInfo = new Page<>(page,pageSize);
        // 构造条件构造器
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper();
        // 添加一个过滤条件
        // 这里的StringUtils是apache_commons_lang包中的
        queryWrapper.like(StringUtils.isNotEmpty(name),Employee::getName,name);
        // 添加排序条件
        queryWrapper.orderByDesc(Employee::getUpdateTime);
        // 执行查询
        employeeService.page(pageInfo,queryWrapper);
        return R.success(pageInfo);
    }
    @PutMapping
    public R<String> update(@RequestBody Employee employee){
        log.info("用户{}",employee);
//        employee.setUpdateUser((Long) request.getSession().getAttribute("employee"));
//        employee.setUpdateTime(LocalDateTime.now());
        employeeService.updateById(employee);
        return R.success("更改成功！");
    }

    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id) {
        log.info("根据id差员工信息");
        Employee employee = employeeService.getById(id);
        if (employee!=null){
            return R.success(employee);
        }
        return R.error("没有找到该员工！");
    }
}
